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AU667369B2 - Method and apparatus for changing processor clock rate - Google Patents
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AU667369B2 - Method and apparatus for changing processor clock rate - Google Patents

Method and apparatus for changing processor clock rate Download PDF

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Publication number
AU667369B2
AU667369B2 AU40151/93A AU4015193A AU667369B2 AU 667369 B2 AU667369 B2 AU 667369B2 AU 40151/93 A AU40151/93 A AU 40151/93A AU 4015193 A AU4015193 A AU 4015193A AU 667369 B2 AU667369 B2 AU 667369B2
Authority
AU
Australia
Prior art keywords
processor
clock rate
circuitry
request
bus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU40151/93A
Other languages
English (en)
Other versions
AU4015193A (en
Inventor
Jenni L Griffith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25408271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU667369(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of AU4015193A publication Critical patent/AU4015193A/en
Application granted granted Critical
Publication of AU667369B2 publication Critical patent/AU667369B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable clock frequency
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Executing Machine-Instructions (AREA)
AU40151/93A 1992-06-12 1993-06-10 Method and apparatus for changing processor clock rate Ceased AU667369B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89769392A 1992-06-12 1992-06-12
US897693 2001-06-29

Publications (2)

Publication Number Publication Date
AU4015193A AU4015193A (en) 1993-12-16
AU667369B2 true AU667369B2 (en) 1996-03-21

Family

ID=25408271

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40151/93A Ceased AU667369B2 (en) 1992-06-12 1993-06-10 Method and apparatus for changing processor clock rate

Country Status (4)

Country Link
US (1) US5784598A (fr)
EP (1) EP0574177B2 (fr)
AU (1) AU667369B2 (fr)
DE (1) DE69320417T3 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617812B1 (fr) 1991-12-17 1998-03-04 Compaq Computer Corporation Appareil permettant de reduire la consommation d'energie d'un systeme informatique
US6865684B2 (en) * 1993-12-13 2005-03-08 Hewlett-Packard Development Company, L.P. Utilization-based power management of a clocked device
US6148397A (en) * 1998-05-06 2000-11-14 Micro-Star International Co., Ltd. CPU plug-and-play method and device
KR100689724B1 (ko) * 2000-01-28 2007-03-09 후지쯔 가부시끼가이샤 핫 플러그에 대응한 클록 전환 회로
US7324450B2 (en) * 2003-03-31 2008-01-29 Intel Corporation Method and apparatus for programming a functionality of an integrated circuit (IC)
US8237386B2 (en) * 2003-08-15 2012-08-07 Apple Inc. Methods and apparatuses for operating a data processing system
US7434171B2 (en) * 2004-03-25 2008-10-07 Intel Corporation Performance control apparatus
US7173450B2 (en) * 2004-06-01 2007-02-06 Hewlett-Packard Development Company, L.P. Bus controller
EP1712979A1 (fr) * 2005-04-11 2006-10-18 Koninklijke Philips Electronics N.V. Architecture modulaire de circuit intégré
EP1785809A1 (fr) 2005-11-14 2007-05-16 Texas Instruments Inc. Mode veille pour gestion d'alimentation
US7817488B2 (en) * 2007-12-20 2010-10-19 Sandisk Corporation Load balancing by using clock gears
DE102010025884B3 (de) * 2010-07-02 2011-07-07 Siemens Aktiengesellschaft, 80333 Verfahren zum Betrieb eines Prozessors in einer Echtzeitumgebung
US11347321B1 (en) * 2021-03-23 2022-05-31 Dell Products L.P. Security hardened function keys and indicators

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8655791A (en) * 1990-11-09 1992-06-11 Wang Laboratories, Inc. System clock speed controller
US5218704A (en) * 1989-10-30 1993-06-08 Texas Instruments Real-time power conservation for portable computers
EP0451661B1 (fr) * 1990-03-30 1995-07-19 Matsushita Electric Industrial Co., Ltd. Microprocesseur à basse consommation d'énergie

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764992A (en) * 1972-02-14 1973-10-09 Bell Telephone Labor Inc Program-variable clock pulse generator
JPS60252979A (ja) * 1984-05-30 1985-12-13 Oki Electric Ind Co Ltd Ｃｍｏｓ入出力回路
JPS61156338A (ja) * 1984-12-27 1986-07-16 Toshiba Corp マルチプロセツサシステム
JPH0616304B2 (ja) * 1984-12-28 1994-03-02 株式会社東芝 低消費電力時におけるｃｐｕの機能代替方法
US4851987A (en) * 1986-01-17 1989-07-25 International Business Machines Corporation System for reducing processor power consumption by stopping processor clock supply if a desired event does not occur
US5167024A (en) * 1989-09-08 1992-11-24 Apple Computer, Inc. Power management for a laptop computer with slow and sleep modes
US5247655A (en) * 1989-11-07 1993-09-21 Chips And Technologies, Inc. Sleep mode refresh apparatus
JP2684813B2 (ja) * 1990-03-28 1997-12-03 日本電気株式会社 マイクロコンピュータ
FI88657C (fi) * 1991-02-12 1993-06-10 Nokia Mobile Phones Ltd Foerfarande foer att minska stroemfoerbrukningen i en mobiltelefon
US5203003A (en) * 1991-03-28 1993-04-13 Echelon Corporation Computer architecture for conserving power by using shared resources and method for suspending processor execution in pipeline
US5390350A (en) * 1991-04-22 1995-02-14 Western Digital Corporation Integrated circuit chip core logic system controller with power saving features for a microcomputer system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218704A (en) * 1989-10-30 1993-06-08 Texas Instruments Real-time power conservation for portable computers
EP0451661B1 (fr) * 1990-03-30 1995-07-19 Matsushita Electric Industrial Co., Ltd. Microprocesseur à basse consommation d'énergie
AU8655791A (en) * 1990-11-09 1992-06-11 Wang Laboratories, Inc. System clock speed controller

Also Published As

Publication number Publication date
AU4015193A (en) 1993-12-16
EP0574177A1 (fr) 1993-12-15
EP0574177B2 (fr) 2003-08-20
DE69320417T3 (de) 2004-05-19
EP0574177B1 (fr) 1998-08-19
US5784598A (en) 1998-07-21
DE69320417D1 (de) 1998-09-24
DE69320417T2 (de) 1998-12-24

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